FVXX20 KNES 212325 VOLCANIC ASH ADVISORY ISSUED: 2004DEC21/2324Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/575 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS MODEL WINDS. GEOPHYSICAL INST. ERUPTION DETAILS: ASH OBSERVED AT 21/2237Z OBS ASH DATE/TIME: 21/2245Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/210 MOVING TO W 10-20 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: THE GEOPHYSICAL INSTITUTE OBSERVED ASH TO FL210 AT 21/2237Z. THE ENTIRE AREA AROUND THE VOLCANO IS OBSCURED BY CLOUDS MAKING DETECTION OF ASH IMPOSSIBLE. CLOUDS WILL CONTINUE TO BLANKET THE AREA DUE TO THE FACT A VERY LARGE THUNDERSTORM COMPLEX IS JUST TO THE EAST OF THE SUMMIT. THIS COMPLEX IS PRODUCING A LOT OF BLOW OFF CIRRUS WHICH IS MOVING RIGHT OVER THE VOLCANO. WALTER ... NEXT ADVISORY: WILL BE ISSUED BY 2004DEC22/0530Z NNNN